Dungeons & Dragons vs Dungeons & Dragons Rules Cyclopedia
Compare Dungeons & Dragons and Dungeons & Dragons Rules Cyclopedia side by side. See differences in complexity, dice, genre, cost, and more.
| Dungeons & Dragons | Dungeons & Dragons Rules Cyclopedia | |
|---|---|---|
| Genre | Fantasy | Fantasy |
| Tags | Tactical, Heroic, Character Building, High-Fantasy, Classic Fantasy, Vancian Casting, Ascending AC | Classic Fantasy, Dungeon Crawl, Exploration, Random Tables, Vancian Casting, Descending AC, Domain Management, Crunchy |
| Core Mechanic | Make a D20 Test by rolling d20, adding relevant modifiers, and comparing the total to a target number. Ability checks, saving throws, and attack rolls use this procedure. Advantage and disadvantage use two d20s and keep the higher or lower result. | Characters make attacks by rolling 1d20, adding applicable modifiers, and meeting the target number for Armor Class. THAC0 offers an equivalent subtraction method. Saving throws are d20 class-and-level targets, and spellcasters memorize limited spells that are expended when cast. |
| Dice | d20 | d20 |
| Complexity | Medium | High |
| Accessibility | Very High | Medium |
| Runnability | Very High | Very High |
| License | CC BY 4.0 (SRD); core books proprietary | All Rights Reserved |
| Third-Party Publishing | Commercial publishing allowed — Open license | Not yet researched |
| Summary only, not legal advice. Check current terms before publishing. | ||
| Cost | Free | $ |
| Publisher | Wizards of the Coast | TSR, Inc. |
| Year | 2024 | 1991 |
| Languages | English, French, Italian, German, Spanish | English |
| Best For | Groups who want heroic fantasy with configurable tactical combat, broad character options, and campaigns that span multiple levels. | Groups who want a single reference for a long-running classic fantasy campaign that can move from dungeons to dominions. It suits readers comfortable learning optional detail alongside the baseline rules. |
| Highlights | Advantage and disadvantage resolve common situational effects by selecting the higher or lower of two d20 rolls. Backgrounds, classes, subclasses, and feats distribute character choices across creation and advancement. Weapon Mastery gives qualifying weapon users distinct tactical effects without replacing the action economy. | Chapter 1 walks a player from ability scores through class, equipment, attacks, and saving throws. Separate combat procedures support personal fights, large battles, and sieges. Stronghold and dominion rules turn accumulated resources into rulership procedures. |
| Considerations | Spell preparation, spell slots, class features, and conditions create several interacting resources for players to track. High-level characters combine many spells and features, increasing adjudication work for the DM. Bastions add a separate downtime procedure for campaigns that use the stronghold rules. | Character advancement reaches 36 levels before optional high-level paths add further decisions. Rules depth spans personal advancement, large battles, and domain administration, requiring a group to choose which procedures will matter. The game retains class-and-race restrictions and descending Armor Class rather than a universal skill resolution procedure. |